Accession Number:

ADA050198

Title:

The Laminar Velocity Profile in a Flat Plate Boundary Layer with Surface Roughness.

Descriptive Note:

Technical memo.,

Corporate Author:

PENNSYLVANIA STATE UNIV UNIVERSITY PARK APPLIED RESEARCH LAB

Personal Author(s):

Report Date:

1977-05-11

Pagination or Media Count:

16.0

Abstract:

The theory of Singh and lumley for the effect of surface roughness on a laminar boundary layer is applied to flow past a semi-infinite flat plate where the roughness is a randomly distributed small amplitude waviness characteristic of the manufacturing process. Distorted velocity profiles are calculated for a range of parameters and comparisons are made with results obtained by a phenomenological theory. Present results are nearly an order of magnitude smaller than those predicted by the phenomenological theory. Author

Subject Categories:

  • Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE